Biological anions have often proven to be difficult analytes to differentiate in solution. Many of the anions bear similar structural characteristics and similar charge states. Using a commercially available indicator and AT-PAMAM dendrimers, a sensing ensemble for a number of biological anions was constructed. The system was able to identify each of the different analytes as well as the regioisomers of three different tricarboxylates. The system shows responsiveness to not only functional group identity but also the charge state and identity of the anionic species.

中文翻译：

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使用 AT-PAMAM 树枝状聚合物区分官能团和生物相关阴离子

生物阴离子经常被证明是难以在溶液中区分的分析物。许多阴离子具有相似的结构特征和相似的电荷状态。使用市售的指示剂和 AT-PAMAM 树枝状聚合物，构建了许多生物阴离子的传感集合。该系统能够识别每种不同的分析物以及三种不同三羧酸盐的区域异构体。该系统不仅显示出对官能团身份的响应，而且还显示出对阴离子物质的电荷状态和身份的响应。